"They will not."Melisandre's voice was soft. "I am sorry, Your Grace. This is not an end. More false kings will soon rise to take up the crowns of those who've died."
"More?" Stannis looked as though he would gladly have throttled her. "More usurpers? More traitors?"
"I have seen it in the flames."

As it has been shown that the flames do not appear to lie -- although they may perhaps mislead and be misinterpreted -- it seems likely that we will see more claimants to various crowns. Indeed, by the end of A Storm of Swords, Tommen and Euron Greyjoy may perhaps be counted as new, false kings.